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X - FIIT STU

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Pomocou týchto matíc prepíšeme tento systém do maticového tvaru Ax = b.<br />

V predchádzajúcej prednáške príklade 8.8 bola zostrojená inverzná matica<br />

vzhľadom k A<br />

−1 ⎛ 1 −1⎞<br />

A = ⎜<br />

−14 12 ⎟<br />

⎝ ⎠<br />

Použitím<br />

x<br />

=<br />

−1<br />

A b zostrojíme riešenie systému v tvare<br />

−1 ⎛ 1 −1⎞⎛1⎞ ⎛ −1⎞<br />

x = A b = ⎜ =<br />

−14 12<br />

⎟⎜<br />

2<br />

⎟ ⎜<br />

34<br />

⎟<br />

⎝ ⎠⎝ ⎠ ⎝ ⎠<br />

Priesvitka 7

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